• The Sourdough Framework hardcover book cover by Hendrik Kleinwächter, with flowchart graphics and an open sourdough crumb
  • Inside spread from The Sourdough Framework: step-by-step flowchart for making a sourdough starter from scratch
  • Inside spread: the sourdough baking process flowchart, from ready starter to baked loaf
  • Inside spread: baking freestanding sourdough bread, with a labelled cross-section of crust and crumb
  • Inside spread: understanding sourdough dough strength, with a gluten-development flowchart and fermentation chart
  • Inside spread: the three sourdough starter types — regular, liquid and stiff — compared in labelled jars
  • Inside spread: debugging your crumb structure, comparing under- and over-fermented sourdough crumb
1 7

The Bread Code

The Sourdough Framework

The Sourdough Framework

$49.95
$49.95
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What's inside the Master Baker Bundle
// save 10%Complete the kit — book, starter & Crumb poster.$98.87 $109.85 save 10%
Loved by 3,000+ bakersSecure checkoutShips worldwide
The Sourdough Framework$49.95
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// complete_the_kit

Complete the kit

The book goes deep, the Explorer gets you baking, and the poster makes the science visible. Grab all three together and save 10%.

The Master Baker Bundle — the book, a live sourdough starter and the Crumb Structures poster Best value
  • The Sourdough Framework $49.95
  • The Explorer Starter: A World-Traveled Dehydrated Sourdough Starter $39.95
  • Crumb Structure Infographic (folded poster) $19.95
$98.87$109.85 Save $10.98

10% applied automatically at checkout.

// from_frustration → freedom

Stop following recipes. Start understanding bread.

Tired of pulling dense, disappointing loaves from the oven — guessing, hoping that this time it works? The Sourdough Framework isn’t another collection of rigid recipes. It’s a complete system that teaches you the why behind the how: a visual, first-principles approach from an engineer who got obsessed with making bread logical, repeatable, and yours.

🇺🇸 🇨🇦 🇲🇽 In the US, Canada or Mexico? The hardcover edition is also on Amazon — usually the fastest delivery there, and it supports the mission just the same. It’s the book on its own; the starter, posters and bundle live here in the shop.

Get it on Amazon →

// what_you_will_learn

From guesswork to a repeatable system

01

Understand the science, simply

Finally grasp how time, temperature and hydration truly work together. No more guesswork.

02

Bake with unshakable confidence

Learn to read your dough and adjust on the fly, adapting to your own kitchen and climate.

03

Troubleshoot like a pro

Detailed flowcharts and a visual toolkit to diagnose and fix any issue — from a sluggish starter to an overproofed loaf.

04

Adapt any recipe — or write your own

Use the framework’s principles to modify recipes or develop your own signature breads with predictable results.

// look_inside

A first-principles approach you can see

Flowcharts, diagrams and a complete visual toolkit — here’s a glance at the framework itself.

A page from The Sourdough Framework
A page from The Sourdough Framework
A page from The Sourdough Framework
A page from The Sourdough Framework
A page from The Sourdough Framework
A page from The Sourdough Framework

// built_for_the_countertop

Built for the baker, not the browser

Distraction-free

Leave the phone and the endless tabs behind. A focused, tactile experience no screen can replicate.

Lay-flat binding

Durable, smyth-sewn binding stays open to the page you need — even with flour on your hands.

Your baking journal

Uncoated paper with generous margins. Scribble notes, record timings, make it the record of your journey.

Gift-worthy object

A tool designed to be used and an object made to be admired — the perfect gift for any baker.

// gatekeeping: false

Your hardcover funds a free, global classroom

theBread.code(); is a non-commercial, passion-driven project, funded entirely by the community. The entire text of this framework is — and always will be — free online. Choosing the hardcover is an act of patronage: it funds new free guides and videos, more translations, an ad-free experience, and better bread in kitchens from Manila to Manhattan. Made possible by 1,100+ original Kickstarter backers who believe baking knowledge belongs to the world.

Hendrik Kleinwächter, The Bread Code

// author: hendrik

Meet the engineer behind the framework

Frustrated by inconsistent recipes, software engineer Hendrik Kleinwächter applied his passion for logic to deconstruct sourdough — and built this framework to give home bakers the scientific understanding to bake with confidence and predictability. “By purchasing this book you’re not just investing in your own baking — you’re helping share the love of sourdough with bakers around the world.”

// faq

Good questions, answered

Is this the physical book or a digital download?
A premium, smyth-sewn hardcover built to lie flat on your counter. The entire text is also free online — the hardcover is for bakers who want the crafted object and to support the open-source mission.
I’m in the US, Canada or Mexico — is there a faster option?
Yes. The hardcover is also available on Amazon.com for faster delivery across North America — your purchase supports the mission just the same.
Do you ship worldwide, and how long does it take?
Yes — we ship worldwide from our small warehouse in Germany. Orders go out every 5 days, always with a tracking number, and delivery usually takes around 1–3 weeks depending on your region.
Where does my money actually go?
theBread.code(); is a non-commercial, open-source project. Your purchase funds the next free video, guide and tool for the whole baking community — you become a patron of an open classroom. Thank you. 🙏